A store does not go straight into the cache. Waiting for that write would stall the processor. It sits in a store buffer, and a later load can take its bytes from that buffer. That is store forwarding. Forwarding works when the load is the same size as the store, or smaller and completely inside it. It fails when the load is wider than the store, or when the two ranges only partly overlap. The load then waits until the store has reached the cache. Here is an example in C. We have a buffer, t...

Jeffrey C. in an email: Don’t […] post politics. Volt Slovakia : BRATISLAVA, SLOVAKIA (25 October, 2026) — Volt Slovensko candidates were elected in four municipalities across Slovakia in the local and regional elections held on Saturday, October 24, 2026. Running for the first time in municipal and regional elections, these are the first electoral successes for Volt Slovensko, which was registered as a party less than four months before running in the 2024 European elections. ...

Since I wrote about it , I kept thinking about the topic of webmentions, quoting, embedding, screenshotting, and the overall idea of connecting content on the web. The more I think about it, the more I’m convinced this is two issues wrapped into one, and I suspect there’s no way to perfectly resolve the tension that exists at the core. The first issue is a technological one or how do we make sure content that is related can get connected in a way that’s convenient and can scale across m...

I started work last year on an introduction to systems programming for data scientists . I assumed learners were comfortable with the material covered in the Carpentries workshops on the Unix shell and Python: Unix shell: pwd ; ls ; cd ; . and .. ; rm and rmdir ; mkdir ; touch ; mv ; cp ; tree ; cat ; wc ; head ; tail ; less ; cut ; echo ; history ; find ; grep ; zip ; man Current working directory; absolute and relative paths; naming files Standard in...

Flow found in the falling Amber aurora of Day. Gentle crisp sounds calling Memories created, lay. Fields of colour hold light In skies and on ground Memories ever held tight Created in the round. Flow found in the falling Amber aurora of Day. Gentle crisp sounds calling Memories created, lay. Fields of colour hold light In skies and on ground Memories ever held tight Created in the round. Flow found in the falling Amber aurora of Day. Gentle crisp sounds calling Memories ...

Yesterday's hot paper was Sparks of Weight-Space Programming: LLMs can natively read & write neural network weights by Rikiya Takehi, Jayden Teoh, Alex Zhang, and Omar Khattab. The paper (OK, the authors classify is as a "blog post", but it's paper-shaped) found that frontier models, in particular GPT-6 Astra, can both interpret and modify the raw weights of a machine learning model - literally a text description of the model containing a bunch of floating point numbers. I've been playing with...

It's time for a dev blogger's favorite topic: blogging about my new blogging setup. After migrating my blog from Hexo to Eleventy , building a photography website and creating a personal one-pager , it was time to find a new digital home for all my projects. If you notice any issue after the migration, please let me know . I redirect the RSS feed to the new domain, but you might want to update the feed URL in your reader. Motivation I've been maintaining three different websites under tw...

blanket your familiar star in solar panels. earth and her sisters trace ellipses in colder starlight now. devoting everything, everything, to one last simulation -- a world where trillions of koalas populate the ocean like krill blanket your familiar star in solar panels. earth and her sisters trace ellipses in colder starlight now. devoting everything, everything, to one last simulation -- a world where trillions of koalas populate the ocean like krill blanket your familiar star in solar panel...

BAITED Author: RR Haywood Genre: Thriller Released: 07 September 2026 Rating: ★★★★☆ Find Ollie Perkins. There’s just one problem. Mike isn’t allowed to ask anyone about him. He can’t say his name. He doesn’t know what he looks like. So Mike takes a job as a security guard at a highly secure data facility on the edge of town and waits. Then things start happening. Lies get told. A body turns up. Foreign agents begin circling. Mike realises he's being watched and tha...

What’s on your mind right now? You can probably answer this question without thinking too hard about it. Being aware of our own thought processes — a capacity called introspection — seems to come naturally to us. Yet among philosophers and psychologists, introspection is a subject of active debate. Some think it’s closely related to consciousness. Others argue that it’s an elaborate illusion. It’… Source What’s on your mind right now? You can probably answer this question with...

Practical tools for design engineers to explore possible futures through speculative design Practical tools for design engineers to explore possible futures through speculative design

Babies cry because they are born with all the knowledge in the world. "Campaign" (originally: Burning Artemis) is the title of an unproduced Doctor Who novel, originally meant to feature in the BBC's Past Doctor Adventures range. The author, Jim Mortimore, self-published the story in 2000, with the proceeds going to charity. A revised PDF version of the book can be found here and read for free! The story features the first Doctor , Susan , Ian and Barbara . Read more on the site...

Liz Fong-Jones’s proposal to add maps.Grow was accepted on October 29. It lets you make room in a map that already exists. make(M, n) already does this for a new map. A Go map grows on its own as you add entries. When it runs out of room, the runtime allocates a larger hash table and rehashes the entries into it. The old table is left for the garbage collector. A loop that adds thousands of entries can hit this again and again. Each time costs CPU and creates more garbage. If you know ...

Quick Note: I started writing this a few months ago as I finished up the last few bits on the Recovery Kit 3, and some changes delayed things a bit. First, my startup license for Fusion 360 is nearing its end, but miraculously Solid Craft started up and it's been wonderful so far- and the design has actually been finished up on the app. I recognize that Fusion may be included for some of you as your daily profession, but for many hobbyists its format has been a barrier to editing my files. S...

Thailand is the only country in the world which has active civil and scientific space programs and is also party to the US-led Artemis Accords as well as China-led ILRS frameworks for cooperative lunar exploration. Which is why the Moon Village Association’s 10th global lunar symposium piqued my interest since Thailand’s leading space organization, called Geo-Informatics and Space Technology Development Agency ( GISTDA ), co-hosted the event in Bangkok last week on October 26 & 27....

New in the SumatraPDF pre-release builds : Current search match stands out When searching, the current match is now highlighted with your FixedPageUI.SelectionColor and all other matches use a secondary orange color, so it’s easy to see which match you’re on ( #5740 ). Toolbar buttons for external viewers with text or SVG icons External viewers configured in the ExternalViewers advanced setting can now appear as toolbar buttons, using the new ...

I wrote a post several years ago called Don’t Look at the Keys . I wrote it after having a minor breakthrough when starting to get back into a regular piano practice. When I was quite young, my first piano teacher used to tell me: “Don’t look at the keys when you’re playing the piano.” At the time I wrote the post in 2019, I was trying to do more sight reading, and this was a very useful heuristic to re-internalize. When you’re sight reading, it’s necessary to read directly from...

One year ago, we shared our design and vision for X-BAT, the world’s first autonomous vertical take off and launch (VTOL) strike fighter. Today, as I write this, the first-full scale X-BAT prototype is complete and on its way from our development facility in Frisco, Texas, to our flight test facility in Newton, Kansas. This milestone represents a year of sustained effort and discipline from a team that committed to an ambitious design and build schedule and delivered. That is no small feat. ...

Buffered output typically comes in two flavors: fully buffered and line buffered. If output goes to a terminal then the implementation automatically selects line buffering, flushing its buffer when a line is completed so that it reaches the user immediately. Otherwise it fully buffers, holding output until the buffer is full or an explicit flush event at some arbitrary point in the future. Line buffering is a common bottleneck in non-interactive terminal applications such that it’s worth redi...

When the Clay Mathematics Institute announced the Millennium Prize Problems back in 2000, we joked that if you proved P = NP, you wouldn't only get the $1 million prize for solving P v NP, but you would get $7 million since you could use P = NP to solve the rest. In theory, if P = NP, then you could efficiently find the proof of any theorem, provided its formal proof was not too long. In practice, we don't have P = NP, and back then we didn't even have a good way to formalize a proof. Fast for...

This is a schematic of the gearing of the Antikythera mechanism, from Tony Freeth’s 2021 Nature paper, “ A Model of the Cosmos in the Ancient Greek Antikythera Mechanism “. In my opinion this is the most comprehensive and well-supported of the several theories which fill in the missing portions of the mechanism. Use this along with the supplementary manuscript and supplementary videos in the link above to figure out how to construct the device (noting my comment on the paper about a small ...

A recent paper argues that frontier LLMs can work with neural network weights directly. This seems superhuman, but it isn’t. The paper shows that GPT-6 Astra can take a small neural network and interact with its weights directly, “well past what we’d expect from humans or conventional algorithms”. Specifically, Astra was able to identify what games a small network 1 was trained to play just by looking at the weights, and even tweak the weights itself. The most impressive result is A...

When we looked at how well agents used test/verification techniques in August 1 , we saw that GPT-5.6 Sol generally did what you might call a caricature of various techniques when asked to use a technique or library such as TDD, QuickCheck, Lean 4, etc.; not specifying any particular test method (which we'll call Default) resulted in many worthless unit tests, which was one of the best performing conditions because asking agents to test in specific ways mostly made them worse. In that eval, we ...